Ram Mounts from Modest Mounts. The Only Car Phone Mount That Doesn't Fail.
The RAM-111U-B consists of a short double socket arm, 2.5 diameter round base, and 6.25 x 2 rectangle base. The round base includes a 1.5 C size
RAM® Universal Marine Electronic Mount - C Size Short
The Best RAM® Phone Mounts for Your Motorcycle
The RAM-B-272U consists of a diameter ball and base with hole. This part is often used on motorcycles, attaching to the mirror frame.
RAM-B-272U Ram Mount Motorcycle Base w/9mm Hole , 1 Ball
The RAM-B-400-C-UN8U consists of the Tough-Claw™ rail clamp base, LONG length double socket arm and universal spring loaded X-Grip® cradle for 7-8
RAM® X-Grip® with Tough-Claw™ Mount for 7-8 Tablets - B Size Long